JP5224915B2 - Discharge container with filter - Google Patents

Discharge container with filter Download PDF

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Publication number
JP5224915B2
JP5224915B2 JP2008146209A JP2008146209A JP5224915B2 JP 5224915 B2 JP5224915 B2 JP 5224915B2 JP 2008146209 A JP2008146209 A JP 2008146209A JP 2008146209 A JP2008146209 A JP 2008146209A JP 5224915 B2 JP5224915 B2 JP 5224915B2
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Prior art keywords
filter
check valve
liquid agent
discharge container
discharge
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JP2008146209A
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JP2009291326A (en
Inventor
博一 三橋
誠司 吉村
加壽子 鈴木
順久 上竹
範男 星
信治 松田
秀俊 近藤
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NIHON TENGANYAKU KENKYUSYO CO., LTD
Taisei Kako Co Ltd
Original Assignee
NIHON TENGANYAKU KENKYUSYO CO., LTD
Taisei Kako Co Ltd
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Priority to JP2008146209A priority Critical patent/JP5224915B2/en
Application filed by NIHON TENGANYAKU KENKYUSYO CO., LTD, Taisei Kako Co Ltd filed Critical NIHON TENGANYAKU KENKYUSYO CO., LTD
Priority to CN200980127957.XA priority patent/CN102098999B/en
Priority to EP09758219A priority patent/EP2295022B1/en
Priority to PCT/JP2009/059340 priority patent/WO2009147952A1/en
Priority to ES09758219T priority patent/ES2394863T3/en
Priority to KR1020107028545A priority patent/KR20110044944A/en
Priority to US12/995,736 priority patent/US8490839B2/en
Priority to TW098118200A priority patent/TWI441625B/en
Publication of JP2009291326A publication Critical patent/JP2009291326A/en
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Publication of JP5224915B2 publication Critical patent/JP5224915B2/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
    • A61F9/0026—Ophthalmic product dispenser attachments to facilitate positioning near the eye
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1412—Containers with closing means, e.g. caps
    • A61J1/1418—Threaded type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1443—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters
    • A61J1/1456—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters using liquid filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1475—Inlet or outlet ports
    • A61J1/1481—Inlet or outlet ports with connection retaining means, e.g. thread or snap-fit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/08—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents adapted to discharge drops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/18—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages for discharging drops; Droppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
    • B65D51/1616—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a filter

Description

本発明は、点眼容器などの液剤用容器に好適に用いることができるフィルター付き吐出容器に関する。   The present invention relates to a discharge container with a filter that can be suitably used for a liquid agent container such as an eye drop container.

本願出願人らは、保存剤を用いることなく無菌環境を維持できる点眼容器の開発を従前から行っており、その成果を下記の特許文献１〜４に開示している。
特開２００４−２６２４７０号公報 特開２００３−２７６７１９号公報 特開２００２−２６３１６６号公報 特開２００２−８００５５号公報 The applicants of the present application have been developing eyedrop containers that can maintain a sterile environment without using a preservative, and the results are disclosed in Patent Documents 1 to 4 below.
JP 2004-262470 A JP 2003-276719 A JP 2002-263166 A Japanese Patent Laid-Open No. 2002-80055

この従来の無菌点眼容器は、スクイズ変形可能な外層の内面に、該外層から剥離可能な内層を積層形成してなるボトルと、該ボトルの口部に設けられ内層の胴部内に収容された内容液を吐出するための吐出路を有する栓体とを備えている。そして、このボトルの吐出路には、逆止弁と親水性フィルターとが設けられており、この逆止弁は、バルブフランジとバルブヘッドとコネクタスリーブとがシリコンゴムなどの弾性材料によって一体成形されたものである。このバルブヘッドは、その中央部に、十字状の切り込みを有するオリフィスが設けられており、コネクタスリーブは、容易に変形し得るように比較的薄肉の柔軟な構造となっている。このため、外層がスクイズ変形され内層の胴部の圧力が増加した際に、逆止弁が、バルブヘッドを下流側へ変位させるように弾性変形するとともにオリフィスが開かれ、内容液剤がフィルターから下流側に流下して、内容液剤が滴下されることになる。また、最初の使用開始前は逆止弁とフィルターとの間の空間には液剤がなく、フィルターは乾燥状態とされており、最初の使用時以降に逆止弁とフィルターとの間の空間が液剤で満たされる。   This conventional sterile eye drop container is a bottle formed by laminating an inner layer peelable from the outer layer on the inner surface of a squeeze-deformable outer layer, and a content provided in the mouth of the inner layer provided at the mouth of the bottle And a plug having a discharge path for discharging the liquid. A discharge valve of the bottle is provided with a check valve and a hydrophilic filter. The check valve is formed by integrally forming a valve flange, a valve head, and a connector sleeve with an elastic material such as silicon rubber. It is a thing. The valve head is provided with an orifice having a cross-shaped cut at the center thereof, and the connector sleeve has a relatively thin and flexible structure so that it can be easily deformed. For this reason, when the outer layer is squeezed and the pressure in the inner layer body increases, the check valve is elastically deformed so as to displace the valve head to the downstream side, the orifice is opened, and the liquid content is downstream from the filter. The content liquid flows down to the side and is dropped. In addition, there is no liquid agent in the space between the check valve and the filter before the first use, and the filter is in a dry state. After the first use, there is no space between the check valve and the filter. Filled with liquid.

ボトル内部に収容される点眼剤の中には、添加される合成界面活性剤によって非常に浸透性の高いものがある。その場合、最初の使用開始前の保管時や流通時に、逆止弁のオリフィスが正常に閉じていてもその切り込みを液剤が浸透し、フィルター側に微量の液剤が流出することがあった。   Some eye drops contained inside the bottle are very permeable depending on the synthetic surfactant added. In that case, at the time of storage before the first use or at the time of distribution, even if the check valve orifice is normally closed, the liquid may permeate the cut and a small amount of liquid may flow out to the filter side.

しかし、親水性フィルターが吸水すると空気がフィルターを通過できないため、逆止弁とフィルターとの間の空気が閉じこめられた状態、いわゆるエアロック状態となり、実質上滴下を行うことが不可能になる。   However, when the hydrophilic filter absorbs water, air cannot pass through the filter, so that the air between the check valve and the filter is confined, that is, a so-called air lock state, and dripping cannot substantially be performed.

そこで、本発明は、浸透力の大きな液剤を収容する場合でも、逆止弁を透過した微量の液剤がフィルターに到達することを未然に防止し、エアロック状態となることを回避することを目的とする。   Therefore, the present invention aims to prevent a minute amount of liquid that has permeated through the check valve from reaching the filter even when a liquid having a high osmotic force is accommodated, and to avoid an air lock state. And

上記目的を達成するために、本発明は、次の技術的手段を講じた。   In order to achieve the above object, the present invention takes the following technical means.

即ち、本発明は、液剤を収容する胴部と該胴部から液剤を吐出するための口部とを備えるボトルと、該ボトルの口部に取付けられた栓体とを備え、前記栓体にはボトル胴部内に収容された液剤を吐出するための吐出路が設けられ、前記栓体は、前記吐出路の途中に配設されたフィルターと逆止弁とを備え、前記フィルターは逆止弁よりも吐出下流側に配設されているフィルター付き吐出容器において、前記逆止弁とフィルターとの間に、閉じた状態の逆止弁を浸透した液剤を貯留する貯留部を設けたことを特徴とするものである。   That is, the present invention includes a bottle including a barrel portion that stores a liquid agent and a mouth portion for discharging the liquid agent from the barrel portion, and a plug body that is attached to the mouth portion of the bottle. Is provided with a discharge passage for discharging the liquid agent accommodated in the bottle body, and the stopper includes a filter and a check valve disposed in the middle of the discharge passage, and the filter is a check valve. In the discharge container with a filter disposed on the downstream side of the discharge, a storage part for storing the liquid agent penetrating the closed check valve is provided between the check valve and the filter. It is what.

かかる本発明のフィルター付き吐出容器によれば、最初の使用前の保管時や流通時に、胴部内の液剤が閉じた状態の逆止弁を浸透した場合でも、かかる微量の液剤が貯留部に貯留され、フィルターに吸水されることを防止できる。したがって、最初の使用前にフィルターが吸水してエアロック状態となることを回避できる。   According to such a discharge container with a filter of the present invention, even when the liquid agent in the trunk portion permeates the closed check valve during storage or distribution before the first use, such a small amount of liquid agent is stored in the reservoir. And can be prevented from being absorbed by the filter. Therefore, it can be avoided that the filter absorbs water and enters an airlock state before the first use.

上記本発明のフィルター付き吐出容器において、前記栓体は、逆止弁とフィルターとの間に配設されたスペーサーをさらに備え、該スペーサーは逆止弁とフィルターとを所定間隔で保持し、前記貯留部はスペーサーに設けられているものとすることができる。これによれば、逆止弁が作動するための空間をスペーサーによって確保しつつ、該スペーサーにより最初の使用前にフィルターが濡れることを防止できる。   In the discharge container with a filter according to the present invention, the stopper further includes a spacer disposed between the check valve and the filter, and the spacer holds the check valve and the filter at a predetermined interval. The reservoir can be provided on the spacer. According to this, the space for operating the check valve can be secured by the spacer, and the spacer can be prevented from getting wet before the first use by the spacer.

また、前記貯留部は、逆止弁側に向けて開口する溝からなるものとすることができる。これによれば、閉じた状態の逆止弁を浸透した微量の液剤が容易に貯留部に流入できるとともに、該液剤が貯留部から流出する際にはフィルターとは反対側に流れるため、ボトルの転倒や起立を繰り返してもフィルターが濡れることを防止できる。   Moreover, the said storage part shall consist of a groove | channel opened toward the non-return valve side. According to this, since a small amount of liquid that has permeated the check valve in the closed state can easily flow into the storage part, and when the liquid agent flows out of the storage part, it flows to the opposite side of the filter, The filter can be prevented from getting wet even after repeated falls and standing.

また、前記逆止弁と前記貯留部との間の吐出路の内周壁には、閉じた状態の逆止弁を浸透した液剤を前記貯留部に案内する案内溝を設けることができる。これによれば、閉じた状態の逆止弁を浸透した液剤が吐出路の内壁面を伝ってフィルター側に流れる際に、該液剤を強制的に貯留部に案内することができ、より確実にフィルターの濡れを防止できる。   In addition, a guide groove that guides the liquid agent that has permeated through the check valve in a closed state to the storage portion can be provided on the inner peripheral wall of the discharge path between the check valve and the storage portion. According to this, when the liquid agent that has permeated through the check valve in the closed state flows to the filter side along the inner wall surface of the discharge passage, the liquid agent can be forcibly guided to the storage unit, and more reliably. The filter can be prevented from getting wet.

また、本発明の吐出容器は、前記逆止弁と前記フィルターとの間に配設された放射状の複数のリブをさらに備えることができる。前記貯留部は前記リブに設けることができ、各リブの間に液剤流通孔を形成することができる。これによれば、意図的に吐出容器を使用する際の液剤の円滑な流通を液剤流通孔によって確保することができる。   The discharge container of the present invention may further include a plurality of radial ribs disposed between the check valve and the filter. The reservoir can be provided in the rib, and a liquid agent circulation hole can be formed between the ribs. According to this, the smooth distribution of the liquid agent when the discharge container is intentionally used can be ensured by the liquid agent circulation hole.

また、本発明の吐出容器は、前記逆止弁よりも胴部側で口部内に配設された緩衝壁をさらに備えることができる。該緩衝壁には液剤流通孔を形成することができる。これによれば、前記緩衝壁により、そこを通過する液剤の流れを緩衝することができるので、吐出容器を転倒させた際などに胴部内の液剤の圧力が一気に逆止弁に作用することを防止でき、逆止弁からの液剤の漏れを防止できる。   Moreover, the discharge container of this invention can further be equipped with the buffer wall arrange | positioned in the opening | mouth part by the trunk | drum side rather than the said check valve. A liquid agent circulation hole can be formed in the buffer wall. According to this, since the flow of the liquid agent passing therethrough can be buffered by the buffer wall, the pressure of the liquid agent in the body portion acts on the check valve all at once when the discharge container is turned over. This can prevent the leakage of the liquid from the check valve.

また、本発明のフィルター付き吐出容器において、前記栓体は、ボトル口部に液密に嵌合する筒状のベースと、該ベースに液密に外嵌されるとともに頂部に液剤吐出口が設けられたノズルキャップと、前記ベース内に保持された前記逆止弁と、該逆止弁よりも吐出下流側で前記ベースに内嵌された筒状のスペーサーと、前記ノズルキャップの頂部とスペーサーとの間に配設された前記フィルターとを備え、前記スペーサーは前記貯留部を備えるとともに、スペーサーには、開かれた逆止弁を通過した液剤をフィルター側に流通させる液剤流通孔が設けられているものとすることができる。これによれば、組付け容易な構造でありながら、最初の使用前には閉じた逆止弁を浸透した微量の液剤を貯留部に貯留してフィルターの濡れを防止できるとともに、吐出容器を意図的に使用する際にはスペーサーの液剤流通孔によって液剤を円滑にフィルター側に流通させることができる。   Further, in the discharge container with a filter of the present invention, the plug body is provided with a cylindrical base that is liquid-tightly fitted to the bottle mouth portion, and is liquid-tightly fitted to the base and is provided with a liquid agent discharge port at the top portion. A nozzle cap, the check valve held in the base, a cylindrical spacer fitted into the base on the discharge downstream side of the check valve, a top portion of the nozzle cap, and a spacer The spacer is provided with the reservoir, and the spacer is provided with a liquid agent circulation hole through which the liquid agent that has passed through the opened check valve is circulated to the filter side. Can be. According to this, although it is a structure that is easy to assemble, a small amount of liquid that has permeated through the closed check valve can be stored in the storage part before the first use, and the filter can be prevented from getting wet. When the liquid is used, the liquid agent can be smoothly distributed to the filter side through the liquid agent circulation hole of the spacer.

また、前記スペーサーの内周壁には、閉じた状態の逆止弁を浸透した液剤を前記貯留部に案内する案内溝を設けることができる。これによれば、閉じた状態の逆止弁を浸透した液剤がスペーサーの内壁面を伝ってフィルター側に流れる際に、該液剤を強制的に貯留部に案内することができ、より確実にフィルターの濡れを防止できる。   The inner peripheral wall of the spacer may be provided with a guide groove that guides the liquid that has permeated the closed check valve to the reservoir. According to this, when the liquid agent that has permeated through the check valve in the closed state flows to the filter side along the inner wall surface of the spacer, the liquid agent can be forcibly guided to the storage portion, and the filter can be more reliably filtered. Can prevent wetting.

また、前記スペーサーのフィルター側端部には放射状の複数のリブが設けられ、前記貯留部は前記リブに設けられ、各リブの間に前記液剤流通孔が形成されているものとすることができる。   Further, a plurality of radial ribs are provided at the filter side end of the spacer, the reservoir is provided in the rib, and the liquid agent circulation hole is formed between the ribs. .

また、前記ベースは、前記逆止弁よりも胴部側で口部内に配設された緩衝壁を備え、該緩衝壁には液剤流通孔が形成されており、前記緩衝壁は、そこを通過する液剤の流れを緩衝するものとすることができる。これによれば、前記緩衝壁により、そこを通過する液剤の流れを緩衝することができるので、吐出容器を転倒させた際などに胴部内の液剤の圧力が一気に逆止弁に作用することを防止でき、逆止弁からの液剤の漏れを防止できる。   In addition, the base includes a buffer wall disposed in the mouth portion on the body side of the check valve, and the buffer wall is formed with a liquid agent circulation hole, and the buffer wall passes through the buffer wall. The flow of the liquid agent to be buffered can be buffered. According to this, since the flow of the liquid agent passing therethrough can be buffered by the buffer wall, the pressure of the liquid agent in the body portion acts on the check valve all at once when the discharge container is turned over. This can prevent the leakage of the liquid from the check valve.

なお、本発明の吐出容器の口部に装着される栓体は、前記ボトル胴部に収容された液剤を外部に吐出するための吐出路を有する。該栓体の前記吐出路を開閉するために該吐出路に装着される逆止弁は、バルブフランジとバルブヘッドとを備えることができ、好ましくは、バルブフランジとバルブヘッドとが、柔軟な構造のバルブスリーブを介して接続されたものとすることができる。前記バルブフランジは、前記吐出路の内周縁をシールする。前記バルブヘッドは、前記バルブフランジの内周縁に、直接又はバルブスリーブ等を介して間接的に接続され、前記袋内部側に予め定められた分与圧力が作用すると前記液剤の流れを許容するように開き且つ前記予め定められた分与圧力が除去されると前記液剤の流れを遮断するように閉じるオリフィスを有するものが好ましい。   The plug mounted on the mouth of the discharge container of the present invention has a discharge path for discharging the liquid agent accommodated in the bottle body to the outside. The check valve mounted on the discharge path for opening and closing the discharge path of the plug body can include a valve flange and a valve head, and preferably the valve flange and the valve head have a flexible structure. It can be connected via a valve sleeve. The valve flange seals the inner peripheral edge of the discharge passage. The valve head is connected to the inner peripheral edge of the valve flange directly or indirectly via a valve sleeve or the like, and allows a flow of the liquid agent when a predetermined dispensing pressure is applied to the inner side of the bag. It is preferable to have an orifice that opens to close and shuts off the flow of the liquid agent when the predetermined dispensing pressure is removed.

本発明によれば、逆止弁とフィルターとの間に、閉じた状態の逆止弁を浸透した微量の液剤を貯留する貯留部を設けることによって、最初に容器を使用する前の保管時や流通時に閉じた逆止弁を浸透してきた液剤によってフィルターが濡れることを防止し、エアーロック状態が生じることを回避できる。   According to the present invention, by providing a reservoir between the check valve and the filter to store a small amount of liquid that has permeated the closed check valve, the container can be stored before using the container for the first time. It is possible to prevent the filter from getting wet by the liquid agent that has permeated through the check valve closed at the time of distribution, and to avoid the occurrence of an air lock state.

図１は、本発明の一実施例に係るフィルター付き吐出容器として、積層剥離ボトルを備える点眼容器１０を示している。この点眼容器１０は、内外二層構造の積層剥離ボトル１１と、該ボトル１１の口部１１ａに装着される栓体１２と、保護キャップ１３とを備えている。使用者がキャップ１３を取り外して積層ボトル１１を倒立させて胴部１１ｂを押圧によりスクイズすると、図２に示すように、ボトル１１内部の点眼液剤（流体）が栓体１２内の吐出流路を通って先端ノズル部１５から滴下されるようになっている。   FIG. 1 shows an eye drop container 10 including a delamination bottle as a discharge container with a filter according to an embodiment of the present invention. This eye drop container 10 includes a delamination bottle 11 having an inner and outer two-layer structure, a stopper 12 attached to a mouth portion 11 a of the bottle 11, and a protective cap 13. When the user removes the cap 13 and inverts the laminated bottle 11 and squeezes the body portion 11b by pressing, the eye drop (fluid) inside the bottle 11 passes through the discharge flow path in the plug body 12 as shown in FIG. It is dripped from the front-end | tip nozzle part 15 through.

上記積層ボトル１１は、外層を構成する外層ボトル１（スクイズボトル）と、内層を構成する内層袋２（流体収容袋）との積層構造とされており、その詳細は上記従来公報に開示したものと同様である。外層ボトルは、円筒状の口部と、横断面扁平状の胴部とを有する。外層ボトルは、例えばＰＥＴやＥＶＯＨなどの合成樹脂材により成形することができ、内層袋は、外層ボトルに対して容易に剥離する性質を有する合成樹脂（例えば、ポリエチレンなどのポリオレフィン）により成形できる。   The laminated bottle 11 has a laminated structure of an outer layer bottle 1 (squeeze bottle) constituting an outer layer and an inner layer bag 2 (fluid containing bag) constituting an inner layer, the details of which are disclosed in the above-mentioned conventional publication. It is the same. The outer layer bottle has a cylindrical mouth portion and a body portion having a flat cross section. The outer layer bottle can be formed of a synthetic resin material such as PET or EVOH, for example, and the inner layer bag can be formed of a synthetic resin (for example, polyolefin such as polyethylene) having a property of easily peeling from the outer layer bottle.

外層ボトルは、図９にも示すように、弾性的にスクイズ変形可能な有底筒状の胴部の上端に、上方に移行するにしたがって徐々に縮径する肩部を介して円筒状の口部が設けられたものである。胴部の周壁は、所定間隔を有して相対向する前後一対の剛性壁部５と、これら剛性壁部５の左右縁部同士を接続する左右の可撓性接続壁部６とから、胴部２の左右幅に比して前後幅が小さい扁平長円状に構成されている。各剛性壁部５（前後壁部）は、正面視において上下に長い長方形状であって、横断面並びに縦断面においてはほぼ平坦状であるが、完全に平坦でなくともよく、若干湾曲していてもよい。各可撓性接続壁部６（左右壁部）は、前後中央部が左右外方に向けて突出する円弧状であって、その曲率半径は、胴部の短径よりも小さくなされている。また、各剛性壁部５は、その上端縁が可撓性上部接続部７を介して肩部に接続されるとともに、その下端縁が可撓性下部接続部８を介して胴部の底部に接続されている。   As shown in FIG. 9, the outer layer bottle has a cylindrical mouth through a shoulder that gradually decreases in diameter as it moves upward at the upper end of a bottomed cylindrical body that is elastically squeezable. A part is provided. The peripheral wall of the trunk portion includes a pair of front and rear rigid wall portions 5 facing each other with a predetermined interval, and left and right flexible connection wall portions 6 that connect the left and right edges of the rigid wall portions 5. The front / rear width is smaller than the left / right width of the portion 2 and is formed in a flat oval shape. Each of the rigid wall portions 5 (front and rear wall portions) has a rectangular shape that is long in the vertical direction when viewed from the front, and is substantially flat in the horizontal and vertical cross sections, but may not be completely flat and is slightly curved. May be. Each flexible connection wall portion 6 (left and right wall portions) has an arc shape in which the front and rear center portions protrude outward in the left and right directions, and the radius of curvature thereof is smaller than the short diameter of the trunk portion. Each rigid wall portion 5 has an upper end edge connected to the shoulder portion via the flexible upper connection portion 7, and a lower end edge connected to the bottom portion of the trunk portion via the flexible lower connection portion 8. It is connected.

外層ボトルの上記した構成によって、前後の剛性壁部５の上下中央部を２本の指先で押圧することにより、該中央部間の距離が半分程度になるまで前後の剛性壁部５を接近させたとき、剛性壁部５の上下端が前記中央部に追従して移動するように左右の接続壁部６並びに上下の接続部７，８が弾性域内で変形するようになっている。   With the above-described configuration of the outer layer bottle, the front and rear rigid wall portions 5 are brought close to each other by pressing the upper and lower central portions of the front and rear rigid wall portions 5 with two fingertips until the distance between the central portions becomes about half. When this occurs, the left and right connecting wall portions 6 and the upper and lower connecting portions 7 and 8 are deformed within the elastic region so that the upper and lower ends of the rigid wall portion 5 move following the center portion.

また、本実施例の外層ボトルの前側の剛性壁部５（前壁部）の上下左右における中央部には、外層ボトル胴部と内層袋の胴部との間に外気を導入するための導入孔１７が設けられている。この導入孔１７は、外層ボトルの内面側から外面側に貫通して形成されており、内層袋には形成されていない。さらに、剛性壁部５の上下左右における中央部には、導入孔１７よりも大径の円形状の凹部１８が形成されている。この凹部１８はボトル内方に窪むように形成されており、直径は５ｍｍ程度とされている。前記導入孔１７は凹部１８内に形成されており、凹部１８を指で塞ぐことによって導入孔１７を閉塞し得るようになっている。上記導入孔１７には逆止弁は設けられておらず常時開口しており、この開口面積はおよそ１ｍｍ2〜２ｍｍ2程度とされている。内層袋の胴部はフィルム状を呈しており、内容液の減少に伴って容易に収縮変形し得るようになっている。 In addition, an introduction for introducing outside air between the outer bottle body and the inner bag body is provided at the center of the rigid wall 5 (front wall) on the front side of the outer bottle of the present embodiment in the vertical and horizontal directions. A hole 17 is provided. The introduction hole 17 is formed so as to penetrate from the inner surface side to the outer surface side of the outer layer bottle, and is not formed in the inner layer bag. Further, a circular recess 18 having a diameter larger than that of the introduction hole 17 is formed at the center of the rigid wall 5 in the vertical and horizontal directions. The recess 18 is formed to be recessed inward of the bottle and has a diameter of about 5 mm. The introduction hole 17 is formed in the recess 18, and the introduction hole 17 can be closed by closing the recess 18 with a finger. The introduction hole 17 is not provided with a check valve and is always open, and the opening area is about 1 mm 2 to 2 mm 2 . The body part of the inner layer bag has a film shape and can be easily contracted and deformed as the content liquid decreases.

上記栓体１２は、ボトル口部に液密に嵌合する筒状のベース２１と、該ベース２１に液密に外嵌されるとともに頂部に液剤吐出口が設けられたノズルキャップ２２と、前記ベース２１内に保持された逆止弁２３と、該逆止弁２３よりも吐出下流側で前記ベース２１に内嵌された筒状のスペーサー２４と、前記ノズルキャップ２２の頂部天板２２ａとスペーサー２４との間に配設された親水性フィルター２５とから主構成されている。   The plug 12 includes a cylindrical base 21 that is liquid-tightly fitted to the bottle mouth, a nozzle cap 22 that is liquid-tightly fitted to the base 21 and has a liquid agent discharge port at the top, A check valve 23 held in the base 21, a cylindrical spacer 24 fitted into the base 21 on the discharge downstream side of the check valve 23, a top top plate 22a of the nozzle cap 22 and a spacer 24 and a hydrophilic filter 25 disposed between them.

ベース２１は、図１１にも示すように、ボトル口部１１ａにその開口端部から液密に内嵌される第１筒部２１ａと、ボトル口部１１ａに外嵌される第２筒部２１ｂと、逆止弁２３を内部に保持する第３筒部２１ｃと、スペーサー２４を内嵌保持する第４筒部２１ｄとを一体に備えている。第１及び第２筒部２１ａ，２１ｂはボトル口部１１ａの開口端部よりも下方で内外二重に配設され、第３及び第４筒部２１ｃ，２１ｄはボトル口部１１ａの開口端部よりも上方で内外二重に配設されている。   As shown in FIG. 11, the base 21 includes a first tube portion 21 a that is liquid-tightly fitted into the bottle mouth portion 11 a from the opening end portion thereof, and a second tube portion 21 b that is fitted onto the bottle mouth portion 11 a. And a third cylindrical portion 21c that holds the check valve 23 therein, and a fourth cylindrical portion 21d that holds the spacer 24 internally. The first and second cylinder parts 21a and 21b are arranged in an inner and outer double below the opening end part of the bottle mouth part 11a, and the third and fourth cylinder parts 21c and 21d are the opening end parts of the bottle mouth part 11a. In the upper part, the inner and outer doubles are arranged.

また、ベース２１は、逆止弁２３よりもボトル胴部１１ｂ側で口部１１ａ内に配設された緩衝壁２１ｅを備えている。この緩衝壁２１ｅは、第１筒部２１ａの下端開口を閉じるように該開口端部に一体形成されており、逆止弁２３からボトル内方に離間して配設されている。緩衝壁２１ｅには、比較的開口面積の小さな液剤流通孔２６が貫通形成されている。図示実施例では、図１０にも示すように、四半円弧状のスリットからなる４つの液剤流通孔２６が環状に並んで形成されている。   Further, the base 21 includes a buffer wall 21e disposed in the mouth portion 11a on the bottle body portion 11b side with respect to the check valve 23. The buffer wall 21e is integrally formed at the opening end portion so as to close the lower end opening of the first cylinder portion 21a, and is disposed away from the check valve 23 inward of the bottle. A liquid agent circulation hole 26 having a relatively small opening area is formed through the buffer wall 21e. In the illustrated embodiment, as shown in FIG. 10 as well, four liquid agent circulation holes 26 each formed of a semicircular arc-shaped slit are formed in a ring shape.

ノズルキャップ２２は、略円筒状の部材であってその軸方向先端に頂部天板２２ａが一体成形されており、頂部天板２２ａの中央部には液剤吐出口１５ａが貫通形成されたノズル部１５が設けられている。該ノズルキャップ２２は、ベース２１の第２及び第４筒部２１ｂ、２１ｄに外嵌固定されている。ノズルキャップ２２の先端部外周は段差を介して小径筒状に形成されており、この小径筒状部外周には保護キャップ１３が螺着されるようになっている。   The nozzle cap 22 is a substantially cylindrical member, and a top top plate 22a is integrally formed at the tip in the axial direction. The nozzle portion 15 has a liquid agent discharge port 15a formed through the central portion of the top top plate 22a. Is provided. The nozzle cap 22 is externally fitted and fixed to the second and fourth cylindrical portions 21 b and 21 d of the base 21. The outer periphery of the tip of the nozzle cap 22 is formed in a small diameter cylindrical shape through a step, and the protective cap 13 is screwed onto the outer periphery of the small diameter cylindrical portion.

ノズルキャップ２２の頂部天板２２ａの内側には、薄板状のフィルター２５が配設されている。このフィルター２５としては、外気の導入を阻止して細菌類が内部に流入することを阻止するために親水性多孔質平膜を採用するのが好ましいが、本発明はフィルター２５としてメンブランフィルター、焼結体フィルター、疎水性多孔質平膜などの適宜のフィルターを使用することもできる。即ち、エアロックが問題とならない構造であっても、使用開始前のフィルターの濡れを防止することで容器の最初の使用開始前にフィルターにおいて細菌類が繁殖することを防止できる効果がある。   A thin plate-like filter 25 is disposed inside the top top plate 22 a of the nozzle cap 22. As this filter 25, it is preferable to employ a hydrophilic porous flat membrane in order to prevent the introduction of outside air and prevent bacteria from flowing into the inside. Appropriate filters such as a combined filter and a hydrophobic porous flat membrane can also be used. That is, even if the structure is such that air lock does not cause a problem, it is possible to prevent bacteria from breeding on the filter before the first use of the container by preventing the filter from getting wet before the start of use.

フィルター２５は逆止弁２３よりも吐出下流側に配設されており、図示例では頂部天板２２ａの下面に隣接配置され、ベース２１の第４筒部２１ｄに内嵌されたスペーサ２４によって保持されている。なお、頂部天板２２ａの下面には、図１２にも示すように、フィルター２５の径方向外側から吐出口１５ａに液剤を流通させる流路を確保するための突起２７が複数形成されている。   The filter 25 is disposed on the discharge downstream side of the check valve 23, and is disposed adjacent to the lower surface of the top top plate 22 a in the illustrated example, and is held by a spacer 24 fitted into the fourth cylinder portion 21 d of the base 21. Has been. As shown in FIG. 12, a plurality of protrusions 27 are formed on the lower surface of the top top plate 22a to secure a flow path for flowing the liquid agent from the radially outer side of the filter 25 to the discharge port 15a.

上記逆止弁２３は、バルブフランジ２３ｃと、バルブヘッド２３ｂと、コネクタスリーブ２３ａとがシリコンゴムなどの弾性材料によって一体成形されたものである。   In the check valve 23, a valve flange 23c, a valve head 23b, and a connector sleeve 23a are integrally formed of an elastic material such as silicon rubber.

バルブフランジ２３ｃは略リング状であって、断面形状は径方向外側に至るほど肉厚が厚くなるような三角形状とされている。このバルブフランジ２３ｃは、スペーサー２４とベース２１とによって上下から気密且つ液密状に挟持されており、吐出路の内周縁を気密且つ液密状にシールしている。   The valve flange 23c has a substantially ring shape, and the cross-sectional shape is a triangular shape that increases in thickness toward the outer side in the radial direction. The valve flange 23c is sandwiched from above and below in an airtight and liquidtight manner by the spacer 24 and the base 21, and seals the inner peripheral edge of the discharge path in an airtight and liquid tight manner.

バルブヘッド２３ｂは、平面視円形状であってボトル内方に向けて凸状に湾曲する球面状に成形されており、その中央部には、十字形の切り込みを有するオリフィスが設けられている。このオリフィスは、ヘッド２３ｂの内面に予め定められた分与圧力が作用すると内層袋１６内部の液剤の吐出を許容するように開き、その予め定められた分与圧力が除去されると、液剤の流れを遮断するように閉じる。コネクタスリーブ２３ａは、略円筒状であって、軸方向一端側はバルブフランジ２３ｃの内周縁に一体的に接続され、軸方向他端側はバルブヘッド２３ｂの外周縁に一体的に接続されている。また、コネクタスリーブ２３ａは容易に変形し得るように比較的薄肉の柔軟な構造となっている。これにより、オリフィスが開くための予め定められた分与圧力よりも小さい所定の圧力がバルブヘッド２３ｂ内面に作用すると、オリフィスが閉じた状態を維持したままでバルブヘッド２３ｂが下流側（先端側）へ変位し、その結果、コネクタスリーブ２３ａは捲れるように弾性変形する。また、上記小さい所定の圧力が除去されると、コネクタスリーブ２３ａは復元変形し、オリフィスが閉じた状態でバルブヘッド２３ｂが上流側（基端側）へ変位し、その結果、液剤吐出口１５ａに残存する液剤をフィルター２５の上流側へ吸い戻す。なお、この流体の吸い込み力は、上記コネクタスリーブ２３ａの弾性復元力によって得られるものであってもよく、また、ヘッド２３ｂの内面の負圧によって得られるものであってもよい。
The valve head 23b has a circular shape in plan view and is formed in a spherical shape that is convexly curved toward the inside of the bottle, and an orifice having a cross-shaped cut is provided at the center. The orifice opens so as to allow discharge of the liquid agent inside the inner layer bag 16 when a predetermined dispensing pressure acts on the inner surface of the head 23b, and when the predetermined dispensing pressure is removed, the orifice of the liquid agent is removed. Close to block flow. The connector sleeve 23a is substantially cylindrical, and one end in the axial direction is integrally connected to the inner peripheral edge of the valve flange 23c, and the other end in the axial direction is integrally connected to the outer peripheral edge of the valve head 23b. . The connector sleeve 23a has a relatively thin and flexible structure so that it can be easily deformed. As a result, when a predetermined pressure smaller than a predetermined dispensing pressure for opening the orifice acts on the inner surface of the valve head 23b, the valve head 23b remains downstream (tip side) while the orifice remains closed. As a result, the connector sleeve 23a is elastically deformed so as to bend. When the small predetermined pressure is removed, the connector sleeve 23a is restored and deformed, and the valve head 23b is displaced upstream (base end side) with the orifice closed. As a result, the connector sleeve 23a enters the liquid discharge port 15a. The remaining liquid agent is sucked back to the upstream side of the filter 25. The fluid suction force may be obtained by the elastic restoring force of the connector sleeve 23a, or may be obtained by the negative pressure on the inner surface of the head 23b.

上記スペーサー２４は、図２〜図８にも示すように、ベース２１の第４筒部２１ｄに内嵌合固定される筒状の本体部２４ａと、該本体部２４ａの下端（逆止弁側端部）から下方に突設され且つスペーサー２４の第３筒部２１ｃ内に挿入される筒状の弁支持部２４ｂと、本体部２４ａの上端（フィルター側端部）に一体的に設けられた放射状の複数のリブ２４ｃとから主構成されている。本実施例では、４つのリブが十字状に設けられている。各リブ２４ｃには、逆止弁側（図において下方）に向けて開口する凹溝からなる液剤貯留部１４が形成されいる。また、本体部２４ａの内周壁には、閉じた状態の逆止弁２３を浸透して本体部２４ａの内周壁面を伝ってフィルター２５側に流れる液剤を貯留部１４に案内するための案内溝１６が設けられている。該案内溝１６は、図示例では、貯留部１４に至るにしたがって幅狭となる漏斗状乃至谷状に形成されている。   As shown in FIGS. 2 to 8, the spacer 24 includes a cylindrical main body portion 24 a that is fitted and fixed to the fourth cylindrical portion 21 d of the base 21, and a lower end (on the check valve side) of the main body portion 24 a. A cylindrical valve support portion 24b that protrudes downward from the end portion and is inserted into the third cylinder portion 21c of the spacer 24, and is integrally provided at the upper end (end portion on the filter side) of the main body portion 24a. It is mainly composed of a plurality of radial ribs 24c. In this embodiment, four ribs are provided in a cross shape. Each rib 24c is formed with a liquid agent storage portion 14 formed of a concave groove that opens toward the check valve side (downward in the drawing). Further, a guide groove for guiding the liquid agent flowing through the inner peripheral wall surface of the main body portion 24a to the filter 25 side through the check valve 23 in the closed state is guided into the inner peripheral wall of the main body portion 24a. 16 is provided. In the illustrated example, the guide groove 16 is formed in a funnel shape or a valley shape that becomes narrower as it reaches the storage portion 14.

スペーサー２４の各リブの間の空間は逆止弁２３側からフィルター２５側に液剤を流通させるための液剤流通孔１７となされている。而して、ボトル胴部１１ｂの内層袋２の内部と容器外部とを連通させる栓体１２の吐出路が、上記したベース２１の液剤流通孔２６、ベースの第１筒部２１ａの内部空間、スペーサ本体２４ａの内部空間、スペーサー２４の液剤流通孔１７、ノズルキャップ１２の上端空洞部及び液剤吐出口１５ａによって構成されている。   Spaces between the ribs of the spacer 24 serve as liquid agent circulation holes 17 for allowing the liquid agent to flow from the check valve 23 side to the filter 25 side. Thus, the discharge path of the plug 12 that connects the inside of the inner bag 2 of the bottle body 11b and the outside of the container includes the liquid agent circulation hole 26 of the base 21, the internal space of the first cylindrical portion 21a of the base, The inner space of the spacer main body 24a, the liquid agent circulation hole 17 of the spacer 24, the upper end cavity of the nozzle cap 12, and the liquid agent discharge port 15a.

本発明は、上記実施例に示した構造に限定されるものではなく、請求の範囲に記載した技術的思想に包含される範囲で適宜の変更を行うことができる。例えば、緩衝壁は、ベースとは別にボトル口部に取り付けられた部材に設けてもよく、また、ボトル口部に一体的に形成してもよい。また、貯留部は、そこに流入した液剤が実質的に再流出しないような空洞部であっても良い。また、ボトルは単層構造であっても良い。また、逆止弁は上記実施例のような吸引弁に限定されるものではなく、先端ノズルの液剤吐出口の液剤を吸引する作用をもたないものであってよい。また、緩衝壁は、逆止弁に当接していてもよいし、逆止弁から離間して設けられていてもよい。   The present invention is not limited to the structures shown in the above embodiments, and appropriate modifications can be made within the scope of the technical idea described in the claims. For example, the buffer wall may be provided on a member attached to the bottle mouth portion separately from the base, or may be formed integrally with the bottle mouth portion. Further, the reservoir may be a cavity that does not substantially re-flow the liquid agent that has flowed into the reservoir. The bottle may have a single layer structure. Further, the check valve is not limited to the suction valve as in the above embodiment, and may have no action of sucking the liquid agent at the liquid agent discharge port of the tip nozzle. Further, the buffer wall may be in contact with the check valve or may be provided apart from the check valve.

本発明の一実施例に係るフィルター付き吐出容器の口部構造を示す拡大断面図である。It is an expanded sectional view showing mouth part structure of a discharge container with a filter concerning one example of the present invention. 同容器のスペーサーの平面図である。It is a top view of the spacer of the container. 同容器のスペーサーの正面図である。It is a front view of the spacer of the container. 同容器のスペーサーの底面図である。It is a bottom view of the spacer of the container. 図２のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 図２のＢ−Ｂ線断面図である。FIG. 3 is a sectional view taken along line B-B in FIG. 2. 図２のＣ−Ｃ線断面図である。It is CC sectional view taken on the line of FIG. 同スペーサーの斜視図である。It is a perspective view of the spacer. 同容器のボトルの斜視図である。It is a perspective view of the bottle of the container. 同容器のベースの底面図である。It is a bottom view of the base of the same container. 同容器のベースの正面図である。It is a front view of the base of the container. 同容器のノズルキャップの底面図である。It is a bottom view of the nozzle cap of the container.

Claims (10)

液剤を収容する胴部と該胴部から液剤を吐出するための口部とを備えるボトルと、該ボトルの口部に取付けられた栓体とを備え、前記栓体にはボトル胴部内に収容された液剤を吐出するための吐出路が設けられ、前記栓体は、前記吐出路の途中に配設されたフィルターと逆止弁とを備え、前記フィルターは逆止弁よりも吐出下流側に配設されているフィルター付き吐出容器において、
前記吐出路の逆止弁とフィルターとの間に、閉じた状態の逆止弁を浸透した液剤がフィルターに吸水されることを防止すべく該液剤を貯留する貯留部を設けたことを特徴とするフィルター付き吐出容器。 A bottle having a barrel portion for storing a liquid agent and a mouth portion for discharging the liquid agent from the barrel portion, and a stopper attached to the mouth portion of the bottle, the stopper body being accommodated in the bottle barrel portion A discharge passage for discharging the liquid agent is provided, and the plug includes a filter and a check valve arranged in the middle of the discharge passage, and the filter is disposed downstream of the check valve. In the discharge container with a filter arranged,
A reservoir for storing the liquid agent is provided between the check valve in the discharge passage and the filter so as to prevent the liquid that has permeated the closed check valve from being absorbed by the filter. Discharge container with filter. 請求項１に記載のフィルター付き吐出容器において、前記栓体は、逆止弁とフィルターとの間に配設されたスペーサーをさらに備え、該スペーサーは逆止弁とフィルターとを所定間隔で保持し、前記貯留部はスペーサーに設けられていることを特徴とするフィルター付き吐出容器。   The discharge container with a filter according to claim 1, wherein the stopper further includes a spacer disposed between the check valve and the filter, and the spacer holds the check valve and the filter at a predetermined interval. A discharge container with a filter, wherein the storage part is provided in a spacer. 請求項１又は２に記載のフィルター付き吐出容器において、前記貯留部は、逆止弁側に向けて開口する溝からなることを特徴とするフィルター付き吐出容器。   The discharge container with a filter according to claim 1 or 2, wherein the storage portion includes a groove that opens toward the check valve. 請求項１，２又は３に記載のフィルター付き吐出容器において、前記逆止弁と前記貯留部との間の吐出路の内周壁には、閉じた状態の逆止弁を浸透した液剤を前記貯留部に案内する案内溝が設けられていることを特徴とするフィルター付き吐出容器。   The discharge container with a filter according to claim 1, 2, or 3, wherein the liquid agent that has permeated the check valve in a closed state is stored in the inner peripheral wall of the discharge path between the check valve and the storage portion. A discharge container with a filter, characterized in that a guide groove is provided to guide the part. 請求項１〜４のいずれか１項に記載のフィルター付き吐出容器において、前記逆止弁と前記フィルターとの間に配設された放射状の複数のリブをさらに備え、前記貯留部は前記リブに設けられ、各リブの間に液剤流通孔が形成されていることを特徴とするフィルター付き吐出容器。   The discharge container with a filter according to any one of claims 1 to 4, further comprising a plurality of radial ribs disposed between the check valve and the filter, wherein the storage portion is formed on the rib. A discharge container with a filter, wherein a liquid agent circulation hole is formed between the ribs. 請求項１〜５のいずれか１項に記載のフィルター付き吐出容器において、前記逆止弁よりも胴部側で口部内に配設された緩衝壁をさらに備え、該緩衝壁には液剤流通孔が形成されており、前記緩衝壁は、そこを通過する液剤の流れを緩衝することを特徴とするフィルター付き吐出容器。   The discharge container with a filter according to any one of claims 1 to 5, further comprising a buffer wall disposed in the mouth portion on the body side of the check valve, wherein the buffer wall has a liquid agent circulation hole. The discharge wall with a filter is characterized in that the buffer wall buffers the flow of the liquid agent passing therethrough. 請求項１に記載のフィルター付き吐出容器において、前記栓体は、ボトル口部に液密に嵌合する筒状のベースと、該ベースに液密に外嵌されるとともに頂部に液剤吐出口が設けられたノズルキャップと、前記ベース内に保持された前記逆止弁と、該逆止弁よりも吐出下流側で前記ベースに内嵌された筒状のスペーサーと、前記ノズルキャップの頂部とスペーサーとの間に配設された前記フィルターとを備え、前記スペーサーは前記貯留部を備えるとともに、スペーサーには、開かれた逆止弁を通過した液剤をフィルター側に流通させる液剤流通孔が設けられていることを特徴とするフィルター付き吐出容器。   The discharge container with a filter according to claim 1, wherein the stopper is liquid-tightly fitted to the bottle mouth portion, and is liquid-tightly fitted to the base and has a liquid agent discharge port at the top. Nozzle cap provided, the check valve held in the base, a cylindrical spacer fitted into the base on the discharge downstream side of the check valve, a top portion of the nozzle cap and a spacer The spacer is provided with the storage portion, and the spacer is provided with a liquid agent circulation hole through which the liquid agent that has passed through the opened check valve flows to the filter side. A discharge container with a filter, characterized in that 請求項７に記載のフィルター付き吐出容器において、前記スペーサーの内周壁には、閉じた状態の逆止弁を浸透した液剤を前記貯留部に案内する案内溝が設けられていることを特徴とするフィルター付き吐出容器。   8. The discharge container with a filter according to claim 7, wherein a guide groove for guiding a liquid agent permeating through a check valve in a closed state is provided on the inner peripheral wall of the spacer. Discharge container with filter. 請求項７又は８に記載のフィルター付き吐出容器において、前記スペーサーのフィルター側端部には放射状の複数のリブが設けられ、前記貯留部は前記リブに設けられ、各リブの間に前記液剤流通孔が形成されていることを特徴とするフィルター付き吐出容器。   The discharge container with a filter according to claim 7 or 8, wherein a plurality of radial ribs are provided at a filter side end portion of the spacer, the storage portion is provided in the rib, and the liquid agent circulation is provided between the ribs. A discharge container with a filter, wherein holes are formed. 請求項７，８又は９に記載のフィルター付き吐出容器において、前記ベースは、前記逆止弁よりも胴部側で口部内に配設された緩衝壁を備え、該緩衝壁には液剤流通孔が形成されており、前記緩衝壁は、そこを通過する液剤の流れを緩衝することを特徴とするフィルター付き吐出容器。   The discharge container with a filter according to claim 7, 8 or 9, wherein the base includes a buffer wall disposed in the mouth portion on the body side of the check valve, and the buffer wall has a liquid agent circulation hole. The discharge wall with a filter is characterized in that the buffer wall buffers the flow of the liquid agent passing therethrough.
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EP09758219A EP2295022B1 (en) 2008-06-03 2009-05-21 Discharge container with filter
PCT/JP2009/059340 WO2009147952A1 (en) 2008-06-03 2009-05-21 Discharge container with filter
ES09758219T ES2394863T3 (en) 2008-06-03 2009-05-21 Discharge vessel with filter
CN200980127957.XA CN102098999B (en) 2008-06-03 2009-05-21 Discharge container with filter
KR1020107028545A KR20110044944A (en) 2008-06-03 2009-05-21 Discharge container with filter
US12/995,736 US8490839B2 (en) 2008-06-03 2009-05-21 Filtering dispenser container
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TW201010688A (en) 2010-03-16
EP2295022B1 (en) 2012-10-17
KR20110044944A (en) 2011-05-03
CN102098999A (en) 2011-06-15
JP2009291326A (en) 2009-12-17
EP2295022A4 (en) 2011-11-09
US8490839B2 (en) 2013-07-23
EP2295022A1 (en) 2011-03-16
ES2394863T3 (en) 2013-02-06
US20110144598A1 (en) 2011-06-16
TWI441625B (en) 2014-06-21
CN102098999B (en) 2014-02-19
WO2009147952A1 (en) 2009-12-10

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